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Method for realizing macroscopic super-lubricity through nano metal coated steel ball and hydrogen-containing carbon film pair

A technology of nano-metal and carbon thin films, applied in the field of macroscopic super-slip, can solve problems such as difficult engineering applications

Inactive Publication Date: 2020-11-03
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The super-lubricity of diamond-like carbon films is mainly concentrated in vacuum. For example, Argonne Laboratory in the United States has developed a high-hydrogen-containing carbon film (40% hydrogen content) (Applied Physics Letters 2001, 78(17):2449-2451), However, it can only achieve super-slip under vacuum conditions, which is difficult for engineering applications

Method used

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  • Method for realizing macroscopic super-lubricity through nano metal coated steel ball and hydrogen-containing carbon film pair
  • Method for realizing macroscopic super-lubricity through nano metal coated steel ball and hydrogen-containing carbon film pair
  • Method for realizing macroscopic super-lubricity through nano metal coated steel ball and hydrogen-containing carbon film pair

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] (1) GCr15 bearing steel (diameter 6mm) was ultrasonicated with tetrachloromethane and absolute ethanol for 30 minutes to remove the dirt and impurities on the surface of the steel ball. After cleaning, check that the steel ball has been cleaned and is ready to be used for coating;

[0015] (2) Coating the steel ball by the electroplating method of displacement reaction: take 0.6g of ammonium chloride, 0.6g of sodium sulfite, then add 30ml of water and 10ml of chloroauric acid solution with a concentration of 4g / L to obtain the required plating solution; Adjust the pH value of the reaction to 13, add the prepared steel balls to be plated, use a glass container for chemical plating, maintain the temperature at 60°C, and control the reaction time to 40min, to obtain steel balls with a gold-plated film thickness of 600nm;

[0016] (3) A diamond-like carbon film with a hydrogen content of 24% was prepared by plasma vapor deposition, and the film thickness was 1000 nm;

[001...

Embodiment 2

[0019] (1) 440c stainless steel balls (diameter 5mm) were ultrasonicated with tetrachloromethane and absolute ethanol for 30 minutes respectively to remove the dirt and impurities on the surface of the steel balls. After cleaning, check that the steel balls have been cleaned and are ready to be used for coating;

[0020] (2) Coating steel balls by electroplating by displacement reaction: Weigh 0.6g EDTA, 0.6g ammonium chloride, add 30ml water and 10ml potassium chloroplatinate solution with a concentration of 4g / L to obtain the required plating Adjust the pH value of the reaction to 13, then add the prepared steel balls to be plated, use a glass container for chemical plating, maintain the temperature at 60°C, and control the reaction time to 40min to obtain steel balls with a platinum-plated film thickness of 800nm;

[0021] (3) A diamond-like carbon film with a hydrogen content of 30% was prepared by plasma vapor deposition, and the film thickness was 800 nm;

[0022] (4) Te...

Embodiment 3

[0024] (1) 440c stainless steel balls (diameter 10mm) were ultrasonicated with tetrachloromethane and absolute ethanol for 30 minutes respectively to remove the dirt and impurities on the surface of the steel balls. After cleaning, check that the steel balls have been cleaned and are ready to be used for coating;

[0025] (2) Coating steel balls by electroplating by displacement reaction: Weigh 0.8g of cobalt chloride, 2g of potassium and sodium tartrate, and then add 30ml of water to obtain the required plating solution; adjust the pH of the reaction to 13, and then add For the prepared steel balls to be plated, use a glass container for chemical plating, maintain the temperature at 60°C, and control the reaction time to 40min, to obtain steel balls with a cobalt-plated film thickness of 800nm;

[0026] (3) The diamond-like carbon film with a hydrogen content of 27% was prepared by plasma vapor deposition method: the film thickness was 800 nm;

[0027] (4) Test the tribologic...

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Abstract

The invention discloses a method for realizing a macroscopic super-lubricity through a nano metal coated steel ball and hydrogen-containing carbon film pair. The method is characterized in that a nanometal coated steel ball and a diamond-like carbon film with hydrogen content of 25 %-30 % are taken as the pair, and in a friction process, a transfer film capable of forming incommensurate contact is generated due to friction chemical reaction in a contact interface, and therefore, the macroscopic engineering super-lubricity is realized.

Description

technical field [0001] The invention relates to a method for realizing macroscopic super-slippage by pairing a nano-metal-coated steel ball with a hydrogen-containing carbon film, belonging to the field of solid super-slippage and tribology. Background technique [0002] Resource and energy consumption is a major problem faced by human society. Especially for moving mechanical systems, high friction not only leads to energy consumption, but also affects the high reliability and long life operation of equipment. As a high-performance solid lubricating film, the diamond-like carbon film has a friction coefficient of the order of 0.05-0.1. Although the friction coefficient has been greatly reduced compared to traditional titanium nitride films, it is not suitable for the future development of deep-sea stations, For systems such as space stations, the operating life of their mechanical systems has become the key to restricting long-term service. [0003] Super-slippery refers ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C16/50C23C16/26C25D3/48C25D7/00C25D3/50C25D3/12
CPCC23C16/50C23C16/26C25D3/48C25D7/00C25D3/50C25D3/12C23C26/00C23C30/005F16C19/02F16C33/32F16C2223/70F16C2223/60C23C14/0605C23C18/54C23C18/42C23C18/32C23C18/1635C23C16/276C23C28/343F16C33/6696
Inventor 张俊彦贾倩张斌张兴凯于元烈
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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